To write 7x7x7x7x7x7 as a power of seven. (answer is 117649) or you could write 7 with a little 6 on top on the right hand side. This indicates that it is to the power of 6 (the number up the top, in this case 6, is called an index and the normal number is called the base.
The answer is:117649
76
Exponents are jus multiplying a number, how ever many times the little number says, by itself. If it's 7 to the 6th power, multiply 7x7x7x7x7x7... If it's 8 to the first power, there's just one 8, so the answer is 8.
7 to the power of 5 is written as 75
7 to the second power
7 to the power of 3 is: 7 x 7 x 7 = 343 Another way to write it is: 7^3 = 343
-16807
7x7x7x7x7x7x7x7.
10-7 = 0.0000001
7*106 = 7,000,000
7x10^7